title: Versatile eco-friendly pickering emulsions based on substrate/native cyclodextrin complexes: a winning approach for solvent-free oxidations.
abstract: Solvent-less Pickering emulsions were developed and applied to catalytic oxidation. These systems are stabilized by inclusion complexes between cyclodextrins and substrates, forming a 3D network among the dispersed phase. In the presence of hydrogen peroxide as a green oxidant and [Na]3 [PW12 O40 ] as a catalyst, they provide particularly efficient reaction media for the oxidation of olefins, organosulfurs, and alcohols. The reactions proceed at competitive rates (up to 400 h(-1) ) with straightforward separation of the phases by centrifugation or heating. Moreover, these new eco-friendly systems work at a preparative scale (up to 2.5 M) and are recycled without loss of activity.
authors.affiliation: Université Lille 1, EA 4478, Chimie Moléculaire et Formulation, F-59655 Villeneuve d'Ascq Cedexm, France.
authors.forename: Loïc
authors.initials: L
authors.lastname: Leclercq
authors.forename: Roberto
authors.initials: R
authors.lastname: Company
authors.forename: Andrea
authors.initials: A
authors.lastname: Mühlbauer
authors.forename: Adrien
authors.initials: A
authors.lastname: Mouret
authors.forename: Jean-Marie
authors.initials: JM
authors.lastname: Aubry
authors.forename: Véronique
authors.initials: V
authors.lastname: Nardello-Rataj
mesh_terms: D002384:Catalysis; D003505:Cyclodextrins / Q000737:chemistry*; D004655:Emulsions; D055772:Green Chemistry Technology; D006536:Heptanes / Q000737:chemistry; D016877:Oxidants / Q000737:chemistry*; D010084:Oxidation-Reduction; D014867:Water / Q000737:chemistry
chemical_list: D003505:Cyclodextrins; D004655:Emulsions; D006536:Heptanes; D016877:Oxidants; D014867:Water
keywords: Pickering emulsions; cyclodextrins; nanoparticles; oxidation; polyoxometalates